<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script type="text/javascript">

    </script>
</head>
<body>
<!-- 我是注释内容-->
<div id="mydiv">我是div内容</div>
<span id="myspan">我是span内容</span>
</body>
</html>